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58181 (1991 CG1)
Classification: Main-belt Asteroid          SPK-ID: 2058181
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1960626054574554 2.737e-08  
a 2.555214817497261 9.4849e-09 au
q 2.054232742875251 6.7906e-08 au
i 4.614561508148403 4.0554e-06 deg
node 346.6065551104645 5.8058e-05 deg
peri 134.0524534157466 5.985e-05 deg
M 124.1152611967519 1.5466e-05 deg
tp 2458686.145862661657
(2019-Jul-21.64586266)
6.3287e-05 TDB
period 1491.899446179059
4.08
8.3069e-06
2.274e-08
d
yr
n .2413031259727356 1.3436e-09 deg/d
Q 3.05619689211927 1.1345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1834  
   data-arc span      10769 days (29.48 yr)  
   first obs. used      1991-01-17  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48909  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:52:02  

Additional Information
 Earth MOID = 1.07307 au 
 Jupiter MOID = 2.03056 au 
 T_jup = 3.406 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457242.5 (2015-Aug-08.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968807882141212 2.7358e-08  
q 2.052298363462407 6.7946e-08 au
tp 2457195.678767036117
(2015-Jun-22.17876704)
6.1425e-05 TDB
node 346.6302306867307 5.8038e-05 deg
peri 134.2903161977541 5.9809e-05 deg
i 4.616062101633575 4.0551e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1834  
   data-arc span      10769 days (29.48 yr)  
   first obs. used      1991-01-17  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48909  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:52:02  

Additional Information
 Jupiter MOID = 2.03056 au 
 T_jup = 3.406 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.484404515074952E-16 -1.848222039044447E-15 -2.703920226195821E-13 -1.920184864315281E-15 -7.658704496695921E-14 -2.178370902795477E-16
q -1.848222039044447E-15 4.616639638375784E-15 7.339289991561617E-13 2.711535172045671E-15 2.073862834255672E-13 4.898236215440277E-16
tp -2.703920226195821E-13 7.339289991561617E-13 3.772997943488514E-9 2.962038869318676E-11 9.18340959585963E-10 1.477218271546406E-12
node -1.920184864315281E-15 2.711535172045671E-15 2.962038869318676E-11 3.368397410645335E-9 -3.349986072265097E-9 1.228826440538216E-10
peri -7.658704496695921E-14 2.073862834255672E-13 9.18340959585963E-10 -3.349986072265097E-9 3.577068449103284E-9 -1.221398654344511E-10
i -2.178370902795477E-16 4.898236215440277E-16 1.477218271546406E-12 1.228826440538216E-10 -1.221398654344511E-10 1.644404019310104E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.41   n/a E2021B10  

58181 (1991 CG1)          Discovered 1991-Feb-07 by Endate, K., Watanabe, K. at Kitami
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2151-Jun-29 17:21 < 00:01 Thisb 0.0401374404242687 0.0401328468252948 0.0401420444019498 6.65369659068511 6.65369656515444 2506876.222795636 0.84172492672806 1068.16994827044 50.588239478101 -77.9026119308199 116037.911574624 T 32 CATAB v2.0f-lin.ifort 2020-Nov-12 22:52:06 2020-Nov-12 22:52
2188-May-05 08:53 00:01 Thisb 0.0451514270076865 0.0451377753856866 0.0451650909793287 6.76690073262431 6.76690071030846 2520335.869995688 1.13601231306522 1362.88343374231 50.662220847597 60.0925287103375 115572.563299288 T 32 CATAB v2.0f-lin.ifort 2020-Nov-12 22:52:06 2020-Nov-12 22:52

Alternate Designations
 1991 CG1 = 1998 WO31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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